Combination door check and closer.



N0 MODEL.

No. 730,417.' PATENTBD "JUNE 9, 190s.

l W. H. rI AYLOR.. COMBINATION DOOR CHECK AND CLOSER. v APPLICATION FILED MAE. z, 190s. y

3 SHEETS-SHEET 1.

\\/ WENT R WITNESSES' n y Atamey No. 730,417. PATENTBD' JUNE 9, 190.3. 4

' W. H. TAYLOR.

COMBINATION DOOR CHECK AND CLOSER.

y APPLICATION FILED MAB. 2. 190s. Bo MODEL. s sHnBTs-smnfr 2 PATENTBD JUNE 9.1903. W. H.V TAYLOR. y OOMBINATION DOOR OHBOK ANO CLOSER.

APPLIGATIQN FILED MAR. 2. 1903.

3 SHEETS-SHEET 3..

No MODEL.

' WITNESS/Es JNVENTOR v v l f vAttamey THS MORRIS PETERS CO. FHOTCLLETHU.. WASNNGGN, D C.l

no. venne.

UNITED STATES y Patented June 9, 19033.

'PATENT i OEEICE.

WARREN n.. TAYLOR, or srAlMEOn-D, CONNECTICUT, AssIeNOR To THE YALE .e frowNEMANUEAo'rUEINe COMPANY, OE sTAMEoRD, CON- NECTICUT. Y

vCOMelrqlirlolu DOOR CHECK AND CLOSER.

SPECIFICATION forming part of Letters Patent N o. 730,417, dated J' une 9, 1903.

Application filed March 2,1 903. Serial No. 145,775. (llo model.)

To all whom it rudy concern:

Be it known that l, WARREN H. TAYLOR, of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in a Combined Door Check and Closer; and l do hereby de- Clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine.

Myinvention relates to an improvement in combined door checks and closers, and is designed more particularly as an improvement on the construction disclosed in Patent No. 658,518, granted September 25, 1900, to The Yale da Towne Manufacturing Company.

The object of the present invention is to so construct the parts that by one adjustment the door will close slowly and silently and in the other adjustment the closing movement will be sudden, short, and powerful.

In the patented device above referred'to the change in the closing movement is effected by removing the arm from the spindle and turning it over, thus altering the relation of 'the arm to the spindle, whereas in the present device the change in adjustment is effected without removing any of the parts.

In the accompanying drawings, Figure 1 is a view in vertical section, showing a doorcheck with my improvement applied thereto.

l Fig. 2 is a view in horizontal section of a part pawls.

' the device to a door.

l represents a horizontal cylindrical-casing, closed at its ends and provided on its top with a cylindrical chamber 2 and with lips 3, having screw-holes therein for the attachment of The shaft or spindle 4: and the spring 5 are located Within chamber 2, the shaft extending out through the top of said chamber and also through its bottom into horizontal chamber 1, the bearing for the shaft between the two chambers being snitably packed to prevent the passage of oil or preferably having one or more valved open- Y ings 9 therein, through which the liquid Within chamber l may freely pass when the piston 8 is moving toward the shaft L1 and which closes when the piston is moving away from the shaft, as in the act of closing the door.

The piston normally, or when the door to which the piston is attached is closed, rests beyond or in front of the by-pass valve 10, and until this position of the piston is reached the liquid in front of the piston lhas a more or less restricted avenue of escape through the by-pass valve. After the piston passes the by-pass the" movement of the piston is retarded'by the liquid confined in front of the piston and which can escape therefrom only byleakage around the piston.

4I make noclaim in this application to any particular construction of cylinder, piston, or other checking surface, spring, or by-pass and have simply illustrated' and referred to these parts in order to disclose my improvements in connection with a complete device; but, on the contrary, I consider myself at liberty to use my improvements on a door check 'orcombned check and closer of any construction whatsoever where the same would be applicable. Y

' The shaft 4 passes up through chamber 2 and is provided with a reduced upper end, which, as shown in Figs. 2- and 6, is made crescent shape,'so as to prevent the yoke or adjusting-piece 11 from turning thereon or moving independently thereof. This shaft is indirectly connected to a spring 5 of any approved form, designed for turning the shaft in a direction for closing the door, while this closing movement is opposed by the liquid in front of piston 8.

The yoke or adj listing-piece 11 is provided with an elongated hub 12, having a bore or opening therein, as shown in Fig. 6, corresponding in size and shape with upper end of shaft 4, so that when the yoke is mounted thereon there can be no rotary movement of either part independentof the other.

Located within the spring-chamber 2 and loosely su rrou nding the shaft 4 and lower end of the hub 12 of the yoke 11 is the ratchetsleeve 13. This sleeve 13 is either directly or indirectly connected to the inner end of the spring 5 and operatively connects the latter to the shaft through the medium of the arm 14 011 the end of the shaft and the connecting-pawl 16, so that when the shaft 4 is turned by the opening of the door the spring will be wound up or compressed, andl when the door` is released the spring will then unwind or expand and operate to close the door.

Loosely mountedon the upper end of the hub 12 of yoke 11 is the lever-arm 14. This lever-arm is made in two sections pivoted together, as in the ordinary manner, the free end of the outer section being securedto the door-frame, while the free end of the other section is mounted onthe hub of the yoke 11, vas above explained, and is provided with an elongated slot 14n for the passage of the square bolt 15 and for the reception of a flange on the pawl 16. This bolt 15 carries the pawl 16, which latter engages theteeth 17 of the ratchet-sleeve13 and locks the sleeve and lever-arm together. These parts (the sleeve 13 and arm 14) are locked to the shaft 4 by the yoke 11. This yoke, as before stated, is secured on the upper end of shaft 4 against independent rotary movement and projects outwardly, as show-n in Figs. 2 and 3, and is provided at its free end with twor threaded bolt-holes 18 for the reception of the bolt 17, carried by leverarm 14. The central portion of this yoke 11 is cut away, as shown in Figs. 2 and 6, to. permit the yoke, to straddle or embrace bolt 15 and pawl 16 and have a limited lateral movement suiiicient to-bring either bolthole 18 under or in alinement with the bolt 17 f. These bolt-holes 18 are so located with relation to the shaft4and crank 6 thereon that when the one to the right (see Fig. 2) is in engagement with the bolt 17L the crank 6 will make a longer throw, and thus carry the piston S beyond the by-pass, whereas when the one to the left is engaged by the bolt, asin Fig. 3, the throw of the crank will be considerably reduced.

1n Fig. 3 the parts are adjusted for slowly closing a right-hand door, while Fig. 2 shows the adjustment for quickly closing the same door. For a left-hand door the lever-arm 14 would stand at precisely the same angle as shown in the iigures, but to the other side of the center of the cylinder 2.

In the adjustment for slow closing the center line of the crank stops before reaching its dead-center, as shown in Fig. 3, while for quick closing it will approach nearer the dead-center, as shown in Fig. 2. It is evident that the nearer a crank approaches its dead-center the greater circular motion it has with reference to the imparted motion of the piston-that is, supposing the crank to be on its center, it can be moved an appreciable distance either way Without imparting any appreciable motion to the piston. Now the motion of the piston when the door is being closed means the forcing of a certain amount of liquid through the by-pass to the rear of the piston, and the less the liquid which must be forced through the less resistance there is to the spring. Accordingly when the crank is on its center there is no resistance to the action of the spring, and when it is slightly removed-say ten one-hundredths away-there is very much less resistance than when itis twenty one-hundredths away. Therefore when-the lever-arm.14 is put on the shaft 4 in such a way that the center lineof-the crank only-approaches to within, say,` twenty onehundredths of the center ofthe piston there is never a time when an appreciable amount ofv liquid-does not have to be forced through the by-pass,-so that the door will close always under the controlof-the liquid g but when the center line of the' crankapproaches to, say, within ten one-hundredths of saidcenter line the motion of the piston is practically nothing at the end. Hence lthefforce'of the spring is practically unoppos'ed, andthe door will-be closed Withfa short suddenimpulse.

The pawl '16, before referred to, is carried 'by-the bolt 15, mounted in oblong slot .14

in the lever-arm 14 and is locked in place by thenut 18a. This pawl has -a tongue or lip which rests Within the elongated slot in'the arm, and hence is retained against the possibility of accidental displacement after having been once set. 4 With this improvement it is not necessary to remove any of the parts to change from rightto left hand nor -to change the character of the closing movement, and with the improved sliding pawl held in.place,-as described, the possibility of accidental separationof thepawl and. the ratchet is entirely obviated.

` It is .evident that many slight changes might be resorted to .in therelative arrangement of parts herein shown `and described Without departing from the spirit Yand scope of my invention. Hence I would have it understood that I do not wish to confine myself to the exact construction of parts shown and described; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a door-closer, a lever-arm having an elongated slot, a sliding pawl having a portion engaging said slot,.and a bolt for lockingthepawl in place.

2. In a combined door check and closer, the combination with a casing, a shaft and spring,

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the latter being operatively connected to the shaft, of a piston connected to the shaft, a lever-arm, and adjusting device rigidly secured to the shaft and adjnstably secured to the lever-arm.

3. In a combined door check and closer the combination with a casing, crank-shaft and spring, of a piston connected to the crank, a leverarm loosely mounted on the shaft, means connecting the lever-arm and spring, and a device for changing the relative position of the lever-arm to the crank without removing the lever-arm from the shaft.

4. In a combined door check and closer, the combination with a casing, crank-shaft and spring, the latterbeing operatively connected to the shaft, of a piston connected to the' crank, a lever-arm on the shaft and means for changing the relative position of the lever-arm to the shaft and for locking it to the latter Without removing the lever-arm.

5. The combination with a casing, shaft,

vspring operatively connected to the shaft,

and a piston connected to the shaft, of a lever-arm carried by the shaft and means for changing the position of the arm on the shaft and for locking it thereto Without removing it from the shaftl 6. The combination with a casing, shaft, spring operatively connected to the shaft and a piston connected to the shaft, of a leverarm mounted on the shaft, a yoke secured to the shaft, and means for adj ustably connecting the yoke and lever-arm. Y

7. The combination with a casing, shaft, spring operatively connected to the shaft, and a piston connected to the shaft, of, a leverarm mounted on the shaft, a yoke secured to to the shaft and means foradjnstably conn'ecting the free end of the yoke to the leverarm.

9. In a door-closer, the combination with a casing,ratehetsleeve, spring operatively connected to said sleeve, anda shaft, of a leverarm on the shaft and provided with a slot, a longitudinally-movable pawl carried in the slot in the arm and engaging the ratchetteeth of the sleeve, and means for locking the pawl in place.

YILO. In a door-closer, the combination with a casing, spring, shaft and ratchet-sleeve, of a lever-arm on the shaft and a pawl adapted to slide and engage the teeth on the ratchetsleeve.

1l. In a door-closer, a lever-arm having an elongated slot, a sliding pawl, having a portion engaging said slot, and a portion engaging -with the spring ratchet-wheel, said pawl being adapted by sliding to connect and disconnect the lever-arm and ratchet-Wheel.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WARREN H. TAYLOR.

Witnesses:

SCHUYLER Mnnnrrr, PATRICK KEEFFE. 

